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2016年11月27日
459. Repeated Substring Pattern
摘要： Given a non-empty string check if it can be constructed by taking a substring of it and appending multiple copies of the substring together. You may a 阅读全文
posted @ 2016-11-27 08:00 微微程序媛 阅读(738) 评论(0) 推荐(0) 编辑
71. Simplify Path
摘要： Given an absolute path for a file (Unix-style), simplify it. For example,path = "/home/", => "/home"path = "/a/./b/../../c/", => "/c" click to show co 阅读全文
posted @ 2016-11-27 06:57 微微程序媛 阅读(242) 评论(0) 推荐(0) 编辑
89. Gray Code
摘要： The gray code is a binary numeral system where two successive values differ in only one bit. Given a non-negative integer n representing the total num 阅读全文
posted @ 2016-11-27 05:43 微微程序媛 阅读(160) 评论(0) 推荐(0) 编辑
2016年11月26日
73. Set Matrix Zeroes
摘要： Given a m x n matrix, if an element is 0, set its entire row and column to 0. Do it in place. click to show follow up. Follow up: Did you use extra sp 阅读全文
posted @ 2016-11-26 14:40 微微程序媛 阅读(157) 评论(0) 推荐(0) 编辑
297. Serialize and Deserialize Binary Tree
摘要： Serialization is the process of converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffer, or 阅读全文
posted @ 2016-11-26 13:51 微微程序媛 阅读(298) 评论(0) 推荐(0) 编辑
449. Serialize and Deserialize BST
摘要： Serialization is the process of converting a data structure or object into a sequence of bits so that it can be stored in a file or memory buffer, or 阅读全文
posted @ 2016-11-26 11:14 微微程序媛 阅读(756) 评论(0) 推荐(0) 编辑
451. Sort Characters By Frequency
摘要： Given a string, sort it in decreasing order based on the frequency of characters. Example 1: Example 2: Example 3: 阅读全文
posted @ 2016-11-26 02:09 微微程序媛 阅读(193) 评论(0) 推荐(0) 编辑
2016年11月25日
165. Compare Version Numbers
摘要： Compare two version numbers version1 and version2.If version1 > version2 return 1, if version1 < version2 return -1, otherwise return 0. You may assum 阅读全文
posted @ 2016-11-25 13:32 微微程序媛 阅读(135) 评论(0) 推荐(0) 编辑
447. Number of Boomerangs
摘要： Given n points in the plane that are all pairwise distinct, a "boomerang" is a tuple of points (i, j, k) such that the distance between i and j equals 阅读全文
posted @ 2016-11-25 12:42 微微程序媛 阅读(246) 评论(0) 推荐(0) 编辑
172. Factorial Trailing Zeroes
摘要： Given an integer n, return the number of trailing zeroes in n!. Note: Your solution should be in logarithmic time complexity. Credits:Special thanks t 阅读全文
posted @ 2016-11-25 07:14 微微程序媛 阅读(93) 评论(0) 推荐(0) 编辑
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